Allow p2p UDP packages to set DSCP

content/renderer/p2p/socket_client.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_RENDERER_P2P_SOCKET_CLIENT_H_
 #define CONTENT_RENDERER_P2P_SOCKET_CLIENT_H_
 
 #include <vector>
 
 #include "base/memory/ref_counted.h"
@@ skipping 37 matching lines @@
   // specified |address|. |address| matters only when |type| is set to
   // P2P_SOCKET_TCP_CLIENT.
   void Init(P2PSocketType type,
             const net::IPEndPoint& local_address,
             const net::IPEndPoint& remote_address,
             Delegate* delegate);
 
   // Send the |data| to the |address|.
   void Send(const net::IPEndPoint& address, const std::vector<char>& data);
 
+  // Send the |data| to the |address| using Differentiated Services Code Point
+  // |dscp|.
+  void SendWithDscp(const net::IPEndPoint& address,

[Sergey Ulanov, 2013/08/17 05:50:04]

Do we expect to change dscp often? Maybe add SetTos(dscp) instead?

Otherwise SendWithDscp() affects all Send() that are called after it that
doesn't seem right.

[juberti2, 2013/08/19 16:06:07]

For hierarchically encoded video, we may change dscp as often as every packet.

[hubbe, 2013/08/21 18:51:36]

I'll changing Send() to default to SendWithDscp(..., DSCP_SC0);

+                    const std::vector<char>& data,
+                    net::DiffServCodePoint dscp);
+
   // Must be called before the socket is destroyed. The delegate may
   // not be called after |closed_task| is executed.
   void Close();
 
   int socket_id() const { return socket_id_; }
 
   void set_delegate(Delegate* delegate);
 
  private:
   enum State {
@@ skipping 47 matching lines @@
   int socket_id_;
   Delegate* delegate_;
   State state_;
 
   DISALLOW_COPY_AND_ASSIGN(P2PSocketClient);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_P2P_SOCKET_CLIENT_H_